How to Drill Into Granite Rock

How to Drill Into Granite Rock?

When you hear the word “granite,” the image of a large rock with striations of shimmering white or blue almost certainly springs to mind. It’s these very features that make granite such an attractive building material.

However, it can also be so challenging to drill into!

So, if you’re looking for ways to drill into your block of granite but aren’t sure how to get started, you’ve come to the right place!

In this article, I’ll be walking you through everything you need to successfully drill into your piece of granite. Let’s dive in.

How to Drill Into Granite Rock: A Step-by-Step Guide

Check out this easy, user-friendly guide.

Step One: Be Prepared

You’ll need a few essential items before you can start drilling. Take a look.

A Granite Drilling Bit

Granite is incredibly stiff. So, you’ll need a different bit than you would use on softer materials like wood.

Granite drilling bits are designed with carbide tips, which are stronger and more durable than the tips on standard drill bits.

A Hammer Drill

Using a hammer drill to spin your granite bit at high speeds will be necessary to break through the tough granite. This can’t be done with a standard drill.

Safety Gear

Drilling through granite is a pretty risky task. Nevertheless, there are certain precautions you can take to keep yourself safe.

The most important thing is to wear eye protection, ear plugs, and gloves.

Chisel and Hammer

You’ll need these items to break away the granite dust produced when drilling.

Step 2: Decide Where You’ll Be Drilling

Before you select your bit or initiate the drilling process, you’ll need to decide where on the granite you want to drill. You’ll want to pick a spot with no fractures or particularly large veins.

Next, pick the location where you’ll be drilling. Look for a dry, clean place, preferably with a flat, smooth surface.

It’s best to start drilling from the center of the stone and work outward, following the natural contours of the rock.

Keep things as safe as possible by using a sturdy bit and a slow, steady pace. A drill bit made specifically for granite can help minimize chipping and cracking.

When drilling into a wall, place a piece of wood on top of the wall so that you’re not directly drilling into it.

Step 3: Pick Your Tools

Pick Your Tools

Drilling into granite is a project that you want to approach with care.

You just need to be smart about the approach you take. For example, when selecting your equipment, you’ll want to choose the highest-quality tools you can afford.

It may cost a little extra up-front. Though, in the long run, it’ll be worth every penny.

There are several different drill bits to choose from, depending on what you’re using them for.

For example, if you’re drilling into a block of granite that’s 3 inches thick, you’ll need a 3-inch diameter bit to drill through without cracking the rock. Alternatively, if drilling into something thinner, you can use a smaller-sized bit.

Finally, make sure that the bit is sharp.

Keep in mind that bits become dull with repeated use. So, even if you’re working with a new drill, you might not even realize that it’s time to change the drill bit for a newer, sharper piece.

Step 4: Secure the Piece of Granite

Start by clearing away any debris and dust from the workspace. You don’t want anything getting into your drilling bit or flying around as you’re drilling!

Next, you’ll want to make sure that your granite piece is secure. You can do this by placing it on a stable surface or lifting the piece off the ground and placing it on a workbench.

If there are any electrical cords or wires in the area where you’ll be drilling, make sure they’re safely out of the way. You don’t want anything getting caught in your bit, after all!

Step 5: Start Drilling

You’ve picked your location, selected your granite drill bit, and prepared everything you need. Now, it’s time to get to work and start drilling!

Your safety should be your top priority. So, make sure you have your safety gear on and gloves to protect your hands.

Before you start drilling, apply a light coating of oil to the tip of your granite drill bit. This helps reduce friction and avoid damaging the drill.

When you’re ready to start drilling, position yourself at an angle to the granite block so the bit can easily break through.

Turn on your hammer drill and adjust the speed setting to “slow.” You want it to start at a slow rate, slowly so that it doesn’t overheat and burn out your bit.

It’s normal to feel some initial resistance in the beginning. Yet, as long as you’re making headway, everything should be fine.

On the other hand, if you start feeling too much resistance, it could cause the drill to overheat. If this is the case, slow down the speed of the drill just a bit, then try again.

Frequently Asked Questions

Here are a couple of questions that can help clarify things a bit more.

Is it good to use a diamond-tipped drill?

Diamond-tipped drills deliver the highest amount of force while drilling into granite rock, and they’re also the most powerful type of drill.

Therefore, they’re great for drilling through rocks that may be tougher than other pieces of equipment.

How do I cut granite into a countertop?

In general, experts recommend wet-cut circular saws for most granite rocks. They’re easy to handle and will reduce hand fatigue as you’re cutting.


Drilling into granite is no easy task. It can be challenging, and requires specialized equipment and techniques.

However, with the proper tools and techniques, it can be done!

Then, you can use it to add some beautiful aesthetic to your home décor. You can also use this durable material for other practical purposes as well.

Whatever your DIY project may be, granite will surely add beauty and elegance to your home.

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